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http://dx.doi.org/10.3741/JKWRA.2008.41.7.737

Long term Rainfall-Runoff Modeling Using Storage Function Method  

Sung, Young-Du (Water Resources Operations Center, Kwater)
Chong, Koo-Yol (Water Resources Operations Center, Kwater)
Shin, Cheol-Kyun (Water Resources Operations Center, Kwater)
Park, Jin-Hyeog (KIWE, K-Water)
Publication Information
Journal of Korea Water Resources Association / v.41, no.7, 2008 , pp. 737-746 More about this Journal
Abstract
The purpose of developing a rainfall-runoff and reservoir model is to provide an analysis tool for hydrological engineers in order to forecast discharge of rivers and to accomplish reservoir operations easily and accurately. In this study, based on the short-term rainfall-runoff storage function model which has gained popularity for real time flood forecast in practical water management affairs, a long-term runoff model was developed for the improvement of the calculation method of effective rainfall and percolation at the infiltration area. Annual discharge was simulated for three dam watersheds(Andong, Hapcheon, Milyang) in Nakdong River basin to analyze the accuracy of the developed model and compare it to SSARR model, which is used as the long-term runoff model in current practical water management affairs. As the result of the comparison of hydrographs, SSARR model showed relatively better results. However, it is possible for the developed model to simulate reliable long-term runoff using relatively little available data and is useful for hydrological engineers in practical affairs.
Keywords
Long-term Run-off; SSARR model; Storage Function;
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Times Cited By KSCI : 1  (Citation Analysis)
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